Pleasure ground from revolutionary Sudan, axed (6)
I believe the answer is:
xanadu
'pleasure ground' is the definition.
(pleasure dome in Coleridge poem Kubla Khan)
'from revolutionary sudan axed' is the wordplay.
'revolutionary' shows that the letters should be reversed in order.
'from' says the answer is hidden in the clue.
'udanax' is hidden within 'sudan axed'.
'udanax' in reverse letter order is 'XANADU'.
(Other definitions for xanadu that I've seen before include "Coleridge's imagined place of great beauty" , "Imaginary wonderful place" , "Wonderful place of Coleridge's Kubla Khan" , "Fabled wonderful place" , "where pleasure-dome was planned" .)